Part Number: 778572-66

The National Instruments PXI-2566 SPDT Relay Module, identified by part number 778572-66, offers versatile relay configuration options, allowing for 16 single-pole double-throw (SPDT) or 8 double-pole double-throw (DPDT) relays. This module is designed for high-performance applications, with a maximum switching voltage of 150 Volts DC and 125 Volts AC across channels, and supports a maximum switching current of 2 Amperes per channel. Notably, it can handle simultaneous operation of all 16 relays at maximum current. Each channel can carry up to 5 Amperes with approximately 9 channels active concurrently.

The relay module features swift response times, with a nominal switching speed of 2 milliseconds and a maximum of 4.4 milliseconds, capable of achieving a cycling speed of 115 cycles per second. Designed for longevity, the SPDT relays offer a mechanical life of 1 × 10^8 cycles and an electrical life of 5 × 10^5 cycles under optimal conditions (30 Volts DC at 1 Ampere) or 3 × 10^5 cycles at 125 Volts AC and 0.2 Amperes. The module includes eight memory addressable trigger lines that enable precise channel control, with a minimum control pulse width requirement of 150 nanoseconds.

The relays are non-latching, remaining in their Normally Closed position when unpowered or when the control signal is inactive. To ensure durability, the relay contacts are composed of gold-clad silver alloy, providing protection against corrosion and the rigors of high-temperature applications. Connectivity is facilitated through a 62-pin D-SUB male connector, and the module operates on 4.5 Watts at 5 Volts or 2.5 Watts at 3.3 Volts.

The PXI-2566 module measures 21.6 cm in length, 2.0 cm in width, and 13.0 cm in height (8.5 in. × 0.8 in. × 5.1 in.) and weighs 250 grams. It is designed for environments with a temperature range of up to 55 degrees Celsius and humidity levels between 5% to 85%, non-condensing. The pollution degree rating is level 2, making it suitable for a variety of industrial applications.